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Finding the Fourth Proportional to 417,571.99, 626,051.29 and 133,098.77

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Solution

The fourth proportional to 417,571.99, 626,051.29 and 133,098.77 is: 199,550.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,571.99 : 626,051.29 = 133,098.77 : x
  2. Step 2: Convert to fraction form
    417,571.99/626,051.29 = 133,098.77/x
  3. Step 3: Cross multiply
    417,571.99x = 626,051.29 × 133,098.77
  4. Step 4: Simplify right side
    417,571.99x = 83,326,656,655.91
  5. Step 5: Solve for x
    x = 83,326,656,655.91/417,571.99
  6. Step 6: Final answer
    x = 199,550.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.